Pipe-union.



HENRY J'.

COMPANY, 0F WATERBURY, CONNECTICUT, A CORPORATION OFCONNECTICUT.

PIPE-UNION.

m1579695 i 4Specification of Letters Iatent. Paitmltigd Umb, 26, 1915.

application mea July 25, 1914. serial No. 853,143.

To all whom it may concern.

Be it known that I, HENRY J. KAST, a citizen of the United States, andresiding at Waterbury, county of New Haven, and State of Connecticut,have invented certain new and useful Improvements in Pipe-Unions,

'of which the following is a full and clear specification.

My invention relates to pipe unions and particularly to the class ofpipe unions in which one pipe section is internally flared to receivethe tapered end of the second pipe section. Unions of this class areusually employed for joiningA pipe sections which have been previouslymade up as separate articles of manufacture. For example, bath roomfixtures such as faucets and the like,

are manufactured, carried in stock and sold by losing the gasket andfacilitating the operation of approximating the member with thecorresponding female member. V

In the accompanying drawings Figure 1 shows in plan the blank from whichmy' gasket is formed. Fig. 2 shows in longitudinal section the firstoperation of applying the gasket to the male member of a pipe union.Fig. 3 is a similar view of a later phase of the forming of the gasket,and Fig. 4 is a longitudinal section of the assembled pipe union.

Referring more particularly to the draw-V ings in which like numeralsrepresent corresponding parts in all views, 1 represents a gasket ofsheet lead or other suitable metal or material. As shown in Figs. 1 and2 the gasket l, which is formed from sheet lead or other"suitable metalor material, comprises substantially a cup having its bottom 1a raisedtoward the rim of the cup whereby a fold .is formed/in the wall of thecup atl". The pipe section or male member 3 is bent outwardly at 4 inknown manner and then bent inwardly toward its rini, the diameter of therim 5 being approximately the saine as the normal diameter of the pipesection 3.

In Figs. 2, 3 and 4 I have shown the method of attaching the gasket 1 tothe male member 3. The dimensions of the gasket 1 are such that wheninverted and applied to the end of the male member 3, the fold 1b willfit the rim 5 and the outer wall of the gasket 1 will lie on theexpanded portion of the male member 3. The parts being in this relationthe portion 1a is punched out of the gasket 1 and a follower punch thenforces the oblique wall lc outwardly against the member 3. As shown inFig. 3, the result of this operation is to substantially aline' theinner face of the wall 1c with the bore of the member 3, and to pressthe outer face of the wall lc against the enlargement of the member 3,thereby eifecting a locking engagement between the gasket 1 and the'member 3.

While I havey described a method for attaching to the male member agasket formed of sheet lead, it will be understood thatiii one aspect myinvention is not limited to such a method but covers for example amolded gasket having the functions of the gasket described herein.

In Fig. 4 are shown the relation and condition of the parts whenassembled with the female member 6 (bath cock or lthe like). The member6 is internally flared to receive the member 3 with its attachedgasket 1. As shown, the draw nut 8 engages the shoulder 4 and, by meansof an internal thread, also engages the external thread of the member 6.The nut 8 being advanced on the member 6 the member 3 and gasket 1 areforced into the member 6. In order to insure a tight seal the dimensionsof the flared female section 6 and the gasket 1 are so proportioned thatin the operation of approximating the parts, the gasket 1 is forced totake the shape shown, the lead of which it is composed being compactedand firmly pressed against the opposing surfaces of the member 3 and 6and the draw-nut 8.

I claim:

1. The combination lwith adjacently disposed pipe sections, one ofsaid'sections being provided with an interior recess and an externalshoulder and the other of said sections being exteriorly threaded, adraw nut threaded to one of said sections and engaging the shoulder onthe other, and a gasket l having one portion expanded into said interiorrecess in one section and another portion clamped between said sectionsand between said sections and said draw nut.

2. A fitting having a rounded head and a shoulder for cooperation withthe flange on a union nut, a relatively soft metal coating permanentlyattached t0 the rounded end of lthe fitting, one portion of the coatingadapt- 10 ed to form a seat for a coperating pipe to which the fixtureis adapted to be attached, and another portion of the coating adapted tobe forced into the threads of the union nut HENRY J. KAST.

Witnesses:

J OHN- M. LYNCH, R. A. FERRIS.

